Method and system for integration and visualization of nuclear power plant personal dose monitoring

Abstract

The invention relates to the technical field of dose monitoring, and discloses a nuclear power plant personal dose monitoring integration and visualization method and system, and the method comprises the steps: obtaining the personal dose data of a worker; calculating dose control parameters according to the personal dose data; and dose monitoring and early warning are realized by comparing the dose control parameter with a dose limit value. According to the method, functions such as radiation work authorization and personal dose are integrated and unified, data are highly shared, the radiation control work efficiency is improved, and safety and reliability are achieved. Through an external interface, visualization of data and functions is realized, and monitoring and management by workers are facilitated. The system has good compatibility and expansibility, and application programs can be upgraded and optimized according to actual requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of dose monitoring, and in particular to a method and system for integrating and visualizing personal dose monitoring in a nuclear power plant. Background Art

[0002] In a nuclear power plant, it is necessary to authorize and manage personal doses of staff members. It also involves radiation authorization personnel information management, RP certificate authorization application, RP certificate authorization change, routine monitoring plan, special monitoring plan, EPD electronic dose data management, TLD data management, WBC internal irradiation data management, outbound dose management, abnormal dose management, total effective dose management, personal dose summary statistics, personal dose limit management and other functional management. The present invention integrates monitoring and management of the above information and realizes data visualization, which is convenient for staff members to monitor and manage, and provides great convenience for radiation control work in nuclear power plants. Summary of the invention

[0003] In view of the above-mentioned problems, the present invention is proposed.

[0004] Therefore, the technical problem solved by the present invention is that personal dose management of nuclear power plant workers is complicated and difficult.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a method for integration and visualization of personal dose monitoring in nuclear power plants, comprising: obtaining personal dose data of staff members; calculating dose control parameters based on the personal dose data; and achieving dose monitoring and early warning by comparing the dose control parameters with dose limits.

[0006] As a preferred solution of the method for integration and visualization of personal dose monitoring in nuclear power plants described in the present invention, the personal dose data includes radiation dose information received by the staff in the working environment and radiation dose information received in other radiation environments.

[0007] As a preferred solution of the method for integration and visualization of personal dose monitoring in nuclear power plants described in the present invention, the dose control parameters include quantitative indicators calculated based on personal dose data, which are used to evaluate the radiation exposure of workers; the dose limit includes the maximum allowable radiation dose of workers.

[0008] As a preferred solution of the method for integration and visualization of personal dose monitoring in nuclear power plants described in the present invention, the dose monitoring and early warning include changing the early warning status according to the comparison results of the dose control parameters and the dose limits in combination with the monitoring plan, and performing a visual display.

[0009] As a preferred solution of the method for integration and visualization of personal dose monitoring in nuclear power plants described in the present invention, the monitoring plan includes dynamically adjusting the plan content according to the personal dose data of the staff, and updating it in real time in combination with the status changes of the dose control parameters.

[0010] As a preferred solution of the method for integration and visualization of personal dose monitoring in nuclear power plants described in the present invention, the dose control parameters include but are not limited to the total effective dose, the dose control value and the dose margin; the total effective dose is expressed as:

[0011] E 总 =E 申报 +E' 总 +E EPD

[0012] Among them, E 总 Indicates the total effective dose; E 申报 Indicates the declared dose; E' 总 Indicates the cumulative total effective dose that has been reviewed in the total effective dose management after the declaration date; E EPD It indicates the reviewed cumulative electron dose during the period when the total effective dose is not generated or reviewed in the total effective dose management one week after the declaration date; the dose control value is the dose control value filled in the monitoring plan. At the beginning of each natural year, the dose control value will be uniformly changed to the dose limit; the dose margin is expressed as:

[0013] E 余 =E 控 -E 总

[0014] Among them, E 余 Indicates the dose margin; E 控 Indicates the dose control value.

[0015] As a preferred solution of the method for integration and visualization of personal dose monitoring in nuclear power plants described in the present invention, the dose monitoring and early warning include setting an early warning value according to a dose limit value, when the total effective dose is less than the early warning value, the early warning state is normal; when the total effective dose is greater than or equal to the early warning value, the early warning state is changed to alarm; when the total effective dose is greater than or equal to the dose limit value, the early warning state is changed to an over-limit value;

[0016] A system for integrating and visualizing personal dose monitoring in a nuclear power plant using any of the methods described in the present invention, wherein: an acquisition module obtains personal dose data of staff members, including radiation dose information received at work and in other environments; a calculation module calculates dose control parameters based on the acquired personal dose data; and an early warning module compares the dose control parameters with dose limits, changes the early warning status based on the comparison results and in combination with a monitoring plan, and performs a visual display.

[0017] A computer device comprises: a memory and a processor; the memory stores a computer program, comprising: the steps of implementing any one of the methods of the present invention when the processor executes the computer program.

[0018] A computer-readable storage medium stores a computer program, comprising: when the computer program is executed by a processor, the steps of implementing any one of the methods of the present invention are implemented.

[0019] Beneficial effects of the invention: The method of the invention integrates and unifies functions such as radiation work authorization and personal dose, highly shares data, and improves the efficiency, safety and reliability of radiation control. Through external interfaces, data and function visualization are realized, which is convenient for staff to monitor and manage. The system has good compatibility and scalability, and the application program can be upgraded and optimized according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 An overall flow chart of a method for integrating and visualizing personal dose monitoring in a nuclear power plant provided by one embodiment of the present invention;

[0022] Figure 2 A schematic diagram of an early warning situation of a method for integrating and visualizing personal dose monitoring in a nuclear power plant provided by an embodiment of the present invention;

[0023] Figure 3 An interface design diagram for integration and visualization of personal dose monitoring in nuclear power plants is provided in accordance with the second embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0025] Example 1, reference Figure 1 , which is an embodiment of the present invention, provides a method for integrating and visualizing personal dose monitoring in a nuclear power plant, comprising:

[0026] S1: Obtain personal dose data of staff members.

[0027] Furthermore, the radiation protection-related authorization information of radiation workers in nuclear power plants can be synchronized, updated and managed, and blacklist management can be carried out for those who seriously violate radiation protection management regulations.

[0028] Staff fill out RP (Radiation Protection Certificate) applications, approve RP certificate applications, create test plans, and change RP certificate applications and test plans.

[0029] The personal dose data includes radiation dose information received by the staff in the working environment and radiation dose information received in other radiation environments.

[0030] In an embodiment of the present invention, the worker is a radiation worker in a nuclear power plant, and the personal dose data includes but is not limited to electronic dosimeter data (EPD), thermoluminescent dosimeter (TLD) data, whole body dosimeter (WBC) internal irradiation data and external dose.

[0031] Specifically, the electronic dosimeter data management function (EPD) allows personal dose managers to synchronize, modify, and delete electronic dose data; divide the dose of non-single unit areas into single units according to certain rules; after reviewing the electronic dose data, the electronic dose data is used as part of the personal dose file to generate EPD periodic reports and participate in the calculation of the total effective dose.

[0032] Thermoluminescent dosimeter (TLD) data management function: allows personal dose managers to manage TLD data, including distribution record management, data import, comparison with electronic dosimeter data, and initiation of abnormal investigation; after reviewing the TLD data, the TLD data is used as part of the personal dose file to generate TLD periodic reports and participate in the total effective dose calculation.

[0033] Whole body dosimeter (WBC) internal exposure data management function: allows personal dose managers to manage WBC data, including measurement record management, data management, initiation of internal exposure estimation records, and initiation of abnormal investigations; after reviewing the WBC data, the WBC data is used as part of the personal dose file to generate WBC cycle reports and participate in the calculation of the total effective dose.

[0034] Out-of-town dose management: When employees of this plant go to work in other nuclear facilities, they need to inform their personal dose managers of the exposure doses received in other nuclear facilities in the form of dose certificates when they return to this power plant. The personal dose managers need to enter the dose information into the out-of-town dose management module and participate in the calculation of the total effective dose of personnel.

[0035] In an optional embodiment, the staff can also be medical staff for radiotherapy. In this scenario, the dose monitoring system of the treatment equipment collects the radiation dose data actually received by the patient during treatment, dynamically collects, compares and manages the data of the dosimeters (such as EPD or TLD) worn by the medical staff, sets the dose limit in the treatment plan, and compares the exposure dose of the medical staff in real time. When the limit is exceeded, an early warning is triggered to adjust the work arrangement or operation method.

[0036] S2: Calculate dose control parameters based on personal dose data.

[0037] Among them, the dose control parameter is a quantitative indicator calculated based on personal dose data and is used to evaluate the radiation exposure of workers; the dose limit is the maximum allowable radiation dose of workers.

[0038] In the embodiment of the present invention, the dose control parameters include but are not limited to the total effective dose, the dose control value and the dose margin.

[0039] Specifically, when the personnel monitoring plan is turned on, a personnel limit data is inserted or updated in the limit management, and the fields of declared dose, declared date, total effective dose, dose control value, dose margin, and total effective dose of the whole system are updated. The total effective dose is expressed as:

[0040] E 总 =E 申报 +E' 总 +E EPD

[0041] Among them, E 总 Indicates the total effective dose; E 申报 Indicates the declared dose; E' 总 Indicates the cumulative total effective dose that has been reviewed in the total effective dose management after the declaration date; E EPD It indicates the reviewed cumulative electron dose for the period after the declaration date and during which no total effective dose was generated or reviewed in the total effective dose management.

[0042] Dose control value E 控 The value-taking rule is: the dose control value filled in the monitoring plan; at the beginning of each natural year, the dose control value will be uniformly changed to the dose limit.

[0043] The dose margin is updated to the monitoring plan every day, and the monitoring plan pushes the dose margin to the annual limit value field of the EPD system. The dose margin is expressed as:

[0044] E 余 =E 控 -E 总

[0045] Among them, E余 Indicates the dose margin; E 控 Indicates the dose control value. After the daily EPD dose review, the total effective dose, dose margin, and total effective dose of the entire system fields are updated regularly.

[0046] In an optional embodiment, the dose control parameter may also be an instantaneous dose value and an average dose rate. The instantaneous dose value represents the radiation dose received by the worker per unit time and is used to evaluate the radiation exposure in a short period of time. When the worker enters an environment with high radiation intensity (such as a radiation flaw detection site or radiotherapy equipment maintenance), the instantaneous dose value can be used to monitor and evaluate the risk in real time and trigger a short-term exposure warning mechanism.

[0047] The average dose rate is the ratio of the radiation dose received by workers in a certain period of time to the radiation dose in that period of time, reflecting the time distribution characteristics of radiation exposure. The dynamic trend of the average dose rate can be used to determine whether workers are in a radiation exposure environment for a long time, and to optimize work arrangements and rest intervals.

[0048] S3: Dose monitoring and early warning are achieved by comparing the dose control parameters with the dose limit.

[0049] The dose monitoring and early warning includes changing the early warning state according to the comparison result between the dose control parameter and the dose limit in combination with the monitoring plan, and performing a visual display.

[0050] The monitoring plan is used to authorize the administrator to create, suspend, or terminate the monitoring plan for radiation workers. The plan content is dynamically adjusted based on the worker's personal dose data, and updated in real time based on the state changes of dose control parameters.

[0051] In the embodiment of the present invention, after the daily EPD dose review, the updated dose control parameters are compared with the dose limit, and the dose warning is implemented in combination with the monitoring plan, such as Figure 2 As shown, the warning value is set according to the dose limit. When the total effective dose is less than the warning value, the warning state is normal.

[0052] When the total effective dose is greater than or equal to the warning value, the status changes to "warning".

[0053] When the total effective dose is greater than or equal to the dose limit and the "Pause monitoring plan switch" field is set to "On", the status changes to "Exceeding limit (paused)" and the monitoring plan of each power plant is automatically suspended.

[0054] When the total effective dose is greater than or equal to the dose limit and the "Pause monitoring plan switch" field is set to "Off", the status changes to "Exceeding limit (not paused)".

[0055] Furthermore, the personal dose manager can manually intervene to push the status to "over limit value (not suspended)" and resume the monitoring plan; or push the over limit value (not suspended) to "over limit value (suspended)" to suspend the monitoring plan.

[0056] Example 2, reference Figure 3 , which is an embodiment of the present invention, provides a method for integration and visualization of personal dose monitoring in nuclear power plants.

[0057] like Figure 3 As shown, this embodiment provides an interface design for the present invention, internal interface: sending a message to a designated person or message group.

[0058] External interface: interface to exchange data with other external third-party systems (such as electronic dosimeter EPD, thermoluminescent dosimeter TLD, whole body dosimeter WBC).

[0059] As shown in the figure, through the interfaces with various businesses, visualization and information sharing such as personal dose management, monitoring plan management, personnel access control system (IAM) dose system, total effective dose management, basic functions, three-dimensional visualization management platform (EVBD), and radiation worker authorization (RWP) management are realized, which facilitates personnel query, monitoring and data management.

[0060] Embodiment 3: In an exemplary embodiment, a system for integration and visualization of personal dose monitoring in a nuclear power plant is also provided, including an acquisition module, a calculation module and an early warning module.

[0061] The acquisition module obtains the personal dose data of the staff, including the radiation dose information received at work and in other environments.

[0062] The calculation module calculates the dose control parameters based on the collected personal dose data.

[0063] The early warning module compares the dose control parameters with the dose limit, changes the early warning status based on the comparison results and the monitoring plan, and displays it visually.

[0064] If the above functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0065] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0066] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0067] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for integration and visualization of personal dose monitoring in nuclear power plants, characterized in that: include: Obtaining personal dose data of staff members; Calculate dose control parameters based on personal dose data; By comparing the dose control parameters with the dose limit, dose monitoring and early warning are achieved.

2. The method for integration and visualization of personal dose monitoring in nuclear power plants according to claim 1, characterized in that: The personal dose data includes radiation dose information received by the staff in the working environment and radiation dose information received in other radiation environments.

3. The method for integration and visualization of personal dose monitoring in nuclear power plants according to claim 2, characterized in that: The dose control parameters include quantitative indicators calculated based on personal dose data and used to assess the radiation exposure of workers; The dose limits include the maximum permissible radiation dose to workers.

4. The method for integration and visualization of personal dose monitoring in nuclear power plants according to claim 3, characterized in that: The dose monitoring and early warning includes changing the early warning state according to the comparison result between the dose control parameter and the dose limit in combination with the monitoring plan, and performing a visual display.

5. The method for integration and visualization of personal dose monitoring in nuclear power plants according to claim 4, characterized in that: The monitoring plan includes dynamically adjusting the plan content according to the personal dose data of the staff member, and updating it in real time in combination with the state changes of the dose control parameters.

6. The method for integration and visualization of personal dose monitoring in nuclear power plants according to claim 1, characterized in that: The dose control parameters include but are not limited to total effective dose, dose control value and dose margin; The total effective dose is expressed as: AND 总 =And 申报 +It's 总 +E EPD Among them, E 总 Indicates the total effective dose; E 申报 Indicates the declared dose; E' 总 Indicates the cumulative total effective dose that has been reviewed in the total effective dose management after the declaration date; E EPD It means the reviewed cumulative electron dose for the period after the declaration date and during which no total effective dose was generated or reviewed in the total effective dose management; The dose control value is the dose control value filled in the monitoring plan. At the beginning of each natural year, the dose control value will be uniformly changed to the dose limit value; The dosage margin is expressed as: AND 余 =And 控 -AND 总 Among them, E 余 Indicates the dose margin; E 控 Indicates the dose control value.

7. The method for integration and visualization of personal dose monitoring in nuclear power plants according to claim 6, characterized in that: The dose monitoring and early warning include setting an early warning value according to the dose limit, and when the total effective dose is less than the early warning value, the early warning state is normal; When the total effective dose is greater than or equal to the warning value, the warning status changes to alarm; When the total effective dose is greater than or equal to the dose limit, the warning status changes to over-limit value.

8. A system for integrating and visualizing personal dose monitoring in a nuclear power plant using any of the methods of claims 1 to 7, characterized in that: include, The acquisition module obtains the personal dose data of the staff, including the radiation dose information received at work and in other environments; A calculation module calculates dose control parameters based on the collected personal dose data; The early warning module compares the dose control parameters with the dose limit, changes the early warning status based on the comparison results and the monitoring plan, and displays it visually.

9. A computer device comprising: A memory and a processor; the memory stores a computer program, characterized in that: when the processor executes the computer program, the steps of the method for integration and visualization of personal dose monitoring in nuclear power plants as described in any one of claims 1-7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for integration and visualization of personal dose monitoring in nuclear power plants as described in any one of claims 1 to 7 are implemented.

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